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The treatment of the Gacun complex Cu-Pb bulk concentrate with high Zn, Ag, etc., by oxygen pressure acid leaching was studied. The primary copper and lead minerals in the concentrate are tetrahedrite and galena. The treatment of tetrahedrite was rarely studied, and most of silver occurred in the mineral too. The optimum operating parameters of oxygen pressure acid leaching were established by conditional...
The dissolution kinetics of vanadium trioxide in sulphuric acid-oxygen medium was examined. It was determined that the concentration of sulphuric acid and stirring speed above 800 r·min−1 did not significantly affect vanadium extraction. The dissolution rate increased with increasing temperature and oxygen partial pressure, but decreased with increasing particle size. The dissolution kinetics was...
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